MRI: Acquisition of Liquid Water Isotope Analyzer Capability for Advancing Hydrologic Research in the Baltimore Ecosystem Study LTER

MRI：获得液态水同位素分析仪功能，以推进巴尔的摩生态系统研究 LTER 的水文研究

• 批准号: 1039831
• 负责人: Claire Welty
• 金额: $ 10.55万
• 依托单位: University of Maryland Baltimore County
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-10-01 至 2015-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1039831&HistoricalAwards=false
• 关键词: MRI; Acquisition; Liquid; Water; Isotope

1039831WeltyThis MRI award funds the acquisition of a liquid water isotope analyzer to support research at the Baltimore Ecosystem Study (BES) LTER. The LWIA will be used in biogeochemical watershed research and compliment current instrumentation at UMBC. Due to rapid and robust capabilities, the new instrument will be used to measure oxygen and hydrogen isotope ratios in order to constrain urban water and nutrient flow paths, fluxes, and storage. The LWIA can be used to constrain phase change processes (which fractionate isotopes) which impact water cycling and storage. Direct research goals involve evaluating interactions between stream base-flow and urban infrastructure, source apportioning water in urban storm flows, determining impacts from engineered stormwater infiltration practices on groundwater recharge, quantifying evapotranspiration in urban settings and assessing interaction between vegetation and engineered urban structures. This instrumentation will support research efforts of 12 investigators from six educational and research institutions and two federal agencies. The eventual impact should eventually span the 34 co-PIs and 70+ collaborators involved in the BES LTER. Students should have access to the instrument and collected data. Underrepresented groups will be involved as UMBC and the Cary Institute of Ecosystem Studies REU will interface with this acquisition. In addition, UMBC has an NSF IGERT to foster education for urban water issues. The PI will be responsible for overall management and maintenance. The instrument will be housed in the Technology Research Center at UMBC in recently-renovated space. A half-time technician will be dedicated to day-to-day operation and maintenance. An online scheduling system will be used to schedule instrument time. ***

1039831Weltythis MRI奖为液态水同位素分析仪的收购提供了支持，以支持巴尔的摩生态系统研究（BES）LTER的研究。 LWIA将用于UMBC的生物地球化学流域研究和补充当前的仪器。由于功能快速，强大，新仪器将用于测量氧和氢同位素比，以限制城市水和养分流道，通量和储存。 LWIA可用于约束影响水循环和存储的相变过程（分数同位素）。直接的研究目标涉及评估溪流基流与城市基础设施之间的相互作用，来源分配城市风暴流中的水，确定工程雨水浸润实践对地下水补给的影响，量化城市环境中的蒸散量并评估植被和工程工程的Urban结构之间的相互作用。该仪器将支持来自六个教育和研究机构以及两个联邦机构的12位研究人员的研究工作。最终的影响最终应跨越参与BES的34个Co-Pis和70多个合作者。学生应该可以访问仪器并收集数据。代表性不足的群体将与UMBC一起参与，而Cary生态系统研究研究所REU将与此次收购接触。此外，UMBC还有一个NSF IGERT来促进城市水问题的教育。 PI将负责总体管理和维护。该乐器将在最近重新装修的空间中安置在UMBC的技术研究中心。半场技术人员将致力于日常操作和维护。在线调度系统将用于安排仪器时间。 ***